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Automobile horn

A technology for horns and automobiles, which is applied in the direction of sound-producing equipment and instruments, and can solve the problems of easy generation of arc sparks, large working current, and short service life.

Inactive Publication Date: 2015-05-13
YINGTAN XINCHENG AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the normally closed contact switch directly connects the power supply to the coil, the working current is large, and it is easy to generate arc sparks. In the environment containing gasoline gas, it is easy to cause explosion or spontaneous combustion accidents, which has potential safety hazards and short service life.

Method used

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  • Automobile horn

Examples

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Embodiment Construction

[0008] see figure 1 , In the present invention, the switch circuit 3 and the magnetic coil 1 are connected in series, one end of the normally closed contact switch 2 is connected to the power supply end of the magnetic coil 1, and the other end is connected to the control end 31 of the switch circuit. The switch circuit 3 is connected in parallel with the regulator tube 32 and the buffer capacitor 33 to prevent the switch circuit 3 from breaking down when the magnetic coil 1 releases electric energy, and to protect the switch circuit 3 . After the switch circuit 3 is connected to the rectifier diode 34, it is connected to the negative pole of the power supply.

[0009] Switching circuit 3 can use switching transistors with higher power, operational amplifiers, field effect tubes, etc. After many tests, it is better to use N-channel field effect tubes, and the performance is more stable.

[0010] It can be seen from the above that when the normally closed contact switch 2 is ...

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PUM

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Abstract

The invention relates to an automobile horn. The automobile horn comprises a normally-closed contact switch, an iron core, an armature, a membrane, a magnetic coil and a special switch circuit. The switch circuit is connected with the magnetic coil in series, one end of the normally-closed contact switch is connected with the power supply end of the magnetic coil, and the other end is connected with the control end of the switch circuit. Because the normally-closed contact switch is connected with the control end of the switch circuit, the working current is very small, electric arc is avoided when working, and the safety and service life are improved.

Description

technical field [0001] The automobile parts of the present invention are particularly related to automobile horns. Background technique [0002] Generally, the car horn includes: normally closed contact switch, iron core, armature, diaphragm, magnetic coil, etc. The normally closed contact switch and the magnetic coil are connected in series. After the power is turned on, the magnetic coil is powered on through the normally closed contact switch, and under the action of the iron core and the armature, the normally closed contact switch is disconnected; after the normally closed contact switch is disconnected, the coil loses power, and the iron core, The armature returns to its original position, so that the normally closed contact switch is powered on again, and the diaphragm generates reciprocating motion to generate sound waves. Its disadvantage is that the normally closed contact switch directly connects the power supply to the coil, the working current is large, and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K9/12
Inventor 段晨
Owner YINGTAN XINCHENG AUTO PARTS